Finding the Fourth Proportional to 3,628.76, 5,443.32 and 1,031.90

Step by Step Solution

1. Step 1: Write the proportion equation
   3,628.76 : 5,443.32 = 1,031.90 : x
2. Step 2: Convert to fraction form
   3,628.76/5,443.32 = 1,031.90/x
3. Step 3: Cross multiply
   3,628.76x = 5,443.32 × 1,031.90
4. Step 4: Simplify right side
   3,628.76x = 5,616,961.91
5. Step 5: Solve for x
   x = 5,616,961.91/3,628.76
6. Step 6: Final answer
   x = 1,547.90